During Rocky's tenure, he hasn't had great teams. That is no mystery.
IMO, the effect a manager can have on a teams performance isn't massive, barring extremes. Ricky has managed to put the worst hitters on the team at the cleanup spot regularly. He is putting awful hitters in an important spot and giving them more ABs then better hitters.
Ricky's teams have an affinity for the bunt. They bunt too damn much. The wrong players are bunting.
Ricky's teams have been awful in the field as well. I don't care if they